ERROR Error: Uncaught (in promise): Error: StaticInjectorError

问题：

ERROR Error: Uncaught (in promise): Error: StaticInjectorError[CallNumber]: 

  StaticInjectorError[CallNumber]: 

    NullInjectorError: No provider for CallNumber!

Error: StaticInjectorError[CallNumber]: 

  StaticInjectorError[CallNumber]: 

    NullInjectorError: No provider for CallNumber!

    at _NullInjector.get (vendor.js:1276)

    at resolveToken (vendor.js:1564)

    at tryResolveToken (vendor.js:1506)

    at StaticInjector.get (vendor.js:1377)

    at resolveToken (vendor.js:1564)

    at tryResolveToken (vendor.js:1506)

    at StaticInjector.get (vendor.js:1377)

    at resolveNgModuleDep (vendor.js:10937)

    at NgModuleRef_.get (vendor.js:12158)

    at resolveDep (vendor.js:12654)

    at _NullInjector.get (vendor.js:1276)

    at resolveToken (vendor.js:1564)

    at tryResolveToken (vendor.js:1506)

    at StaticInjector.get (vendor.js:1377)

    at resolveToken (vendor.js:1564)

    at tryResolveToken (vendor.js:1506)

    at StaticInjector.get (vendor.js:1377)

    at resolveNgModuleDep (vendor.js:10937)

    at NgModuleRef_.get (vendor.js:12158)

    at resolveDep (vendor.js:12654)

    at c (polyfills.js:3)

    at Object.reject (polyfills.js:3)

    at NavControllerBase._fireError (vendor.js:48455)

    at NavControllerBase._failed (vendor.js:48448)

    at vendor.js:48495

    at t.invoke (polyfills.js:3)

    at Object.onInvoke (vendor.js:4979)

    at t.invoke (polyfills.js:3)

    at r.run (polyfills.js:3)
    at polyfills.js:3

解决方法：

1.在app.module.ts文件顶端添加【import {CallNumber} from "@ionic-native/call-number";】

2.prooviders添加【CallNumber，】

import { CallNumber } from "@ionic-native/call-number";

...

@NgModule({
...

providers: [
...
CallNumber,
...
]
...
})
export class AppModule { }